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Master Audio 

Joker Series (JK46A). Version 1.0     

 

 Sep14 

3

1. INTRODUCTION 
 
1.1. General 
 

Master Audio would like to thank you for your confidence in our Joker Series. We 
suggest you to carefully read the following instructions in order to obtain the best 
results in performance. 

 
1.2. Features and presentation 
 
JK46A

 

 

- Self-powered acoustic system 
- XLR electronically balanced input & XLR parallel output 
- AC PowerCon input 
- 600 W class D amplifier for low-mid range 
- 100 W class D amplifier for high range 
- 24-bit AD/DA converters, 48kHz sampling rate 
- Self amplifier diagnostics: output power, temperature, clipping 
- DSP Controls (delay, volume, polarity, presets and limiters) 
- 4x6" neodymium woofers with carbon fiber cone and 1.5” voice coil 
- 1.75" PETP diaphragm neodymium driver 
- 50º to 100º (H) x 55º (V) asymmetrical dispersion horn  
 

1.3. Presets  
 

The JK46A cabinet includes several manufacturer presets for different types of 
applications.

 

 
FLAT 
 

Flat response   
• Standard preset 
 

NEARFIELD 
 

-3dB mid 
 frequencies  
(800Hz-3kHz)  
• Small venues 
• Medium level 
• Short-medium  
distance 

 
NE 
 

-3dB mid 
 frequencies 
(200Hz-3kHz) 
• Small venues 
• Medium level 
• Short distance 

Содержание Joker JK46A

Страница 1: ...JK46A Pol Ind Norte Perpiny 25 08226 TERRASSA Barcelona SPAIN Copyright 2014 info master audio com All rights reserved www master audio com Sept 14 User s manual Manual usuario...

Страница 2: ...rces such as radiators heaters or other heat emitting elements 7 The equipment must be repaired by qualified technical service personnel when A The mains supply cable is damaged or B Any object or liq...

Страница 3: ...class D amplifier for high range 24 bit AD DA converters 48kHz sampling rate Self amplifier diagnostics output power temperature clipping DSP Controls delay volume polarity presets and limiters 4x6 ne...

Страница 4: ...is used in conjunction with the JK46A in XOVER preset the subwoofer must operate in positive polarity When any of the subwoofers from Joker series is used in conjunction with the JK46A in FACTORY NEA...

Страница 5: ...m The gain can be adjusted between 0 and 20dB Once 20dB is reached and the Down key is further pressed the system will be muted To unmute it press the Up key again D PROTECTION LED This led lights up...

Страница 6: ...Master Audio Joker Series JK46A Version 1 0 Sep14 6 Fig 1 JK46A control and connection panel A B C D E F G H CONTROL PANEL MODEL SPECIFICATIONS CONNECTION PANEL I...

Страница 7: ...arketplace Blackberry AppWorld and Bada App Market Connection Plate H AC MAINS INPUT Mains supply connection via PowerCon blue connector for AC in Always use mains power cable supplied by manufacturer...

Страница 8: ...ollow the same parameters as explained in figure 2 3 MOUNTING AND PLACEMENT For a proper installation of a sound system it is strongly recommended to carefully read the following advices 3 1 Placement...

Страница 9: ...orizontal or vertical position To rotate the horn unscrewed the frontal grille and then unscrewed the four fixing screws of the horn Rotate it 90 degrees taking care of the wires Screw the horn again...

Страница 10: ...es the horn should be used with its narrow dispersion 50 We suggest you to pay attention to the following examples 3 3 1 Vertical Positioned Cabinets Flown and aiming to the audience We need wide cove...

Страница 11: ...Extreme care should be taken to assure the load bearing capabilities of the structures where the cabinets will be placed Hanging hardware as chains eyebolts lock pins should be regularly inspected and...

Страница 12: ...ovide several M8 flying points Their correct use will permit the flying in horizontal or vertical position Fig 10 JK46A rigging points JK46A Horizontal flying 2 5 or 3 6 or 9 10 or 11 12 front rigging...

Страница 13: ...vertical flying of JK46A Refer to HR26 instructions manual for more information Fig 11 HR26 flying bar for JK46A 3 6 JK46A grille To remove the front grille first remove the screws on both the left a...

Страница 14: ...n Fig 13 will be displayed Fig 13 Main screen display A Current preset B Input and Output levels C Gain level D Temperature of the power stage E Special features Eco when Ecomode is enabled ALC when A...

Страница 15: ...ys remember to unlock the keypad to perform an action MENU browses the different options on each level To accept an option press SELECT To enter the main menu press MENU once The following options are...

Страница 16: ...ignal is present again the system will wake up and continue playing until the input signal is gone the next time If the Eco mode is selected the word Eco will display in the main screen IMPORTANT The...

Страница 17: ...ed There are three information screens which can be switched by pressing SELECT In the last screen Settings it is also possible to reset the system to the factory values To do this press MENU and then...

Страница 18: ...ever should the temperature in the amplifier rise abnormally the system will automatically adjust the limiter threshold to try to compensate for the temperature raise The system will progressively low...

Страница 19: ...levels Under this listening condition the behaviour of human ear is to naturally enhance the level of middle frequencies The lower the level the higher is the middle frequency enhancement To compensa...

Страница 20: ...lay line 118ms 40m Frequency response Usable bandwidth 10 dB 50Hz 18kHz Maximum output level 1m continuous 125 dB Amplifier program 600 100W Nominal directivity 6dB 50 to 100 x 55 Components LF 4 x 6...

Страница 21: ...rato s lo con pa os secos 6 No instale el aparato cerca de ninguna fuente de calor como radiadores estufas u otros aparatos que emitan calor 7 Este equipo debe ser reparado por personal cualificado de...

Страница 22: ...v a aguda Convertidores AD DA de 24 bits frecuencia de muestreo de 48kHz Controles DSP delay volumen polaridad presets y limitadores Autodiagn stico del sistema potencia de salida temperatura limitado...

Страница 23: ...ofers de la serie Joker con el recinto JK46A en preset XOVER el subwoofer debe operar en polaridad positiva Cuando se utilizan subwoofers de la serie Joker con el recinto JK46A en preset FACTORY NEARF...

Страница 24: ...olumen del sistema entre 0dB y 20dB Si se alcanza el valor de 20dB y se pulsa otra vez la flecha Abajo el sistema se silenciar MUTE Para salir del estado de MUTE volver a pulsar la flecha Arriba D LED...

Страница 25: ...tra toda la informaci n relacionada al producto Las aplicaciones de lectura de c digos QR est n disponibles de manera gratuita para las plataformas de smartphones m s habituales iPhone iPad App Store...

Страница 26: ...Master Audio Joker Series JK46A Version 1 0 Sep14 26 Fig 1 Panel de control y de conexiones JK46A A B C D E F G H PANEL DE CONTROL MODELO Y ESPECIFICACIONES PANEL DE CONEXIONES I...

Страница 27: ...ATENCI N Conexiones de se al no balanceadas deben desconsiderarse Para la conexi n de red use cable con conector azul PowerCon No conecte recintos de la serie Joker usando cable PowerCon sin toma de...

Страница 28: ...do 3 2 Utilizaci n sobre subwoofer La JK46A incorpora una base para barra de 35mm de di metro para poder colocar la caja encima de un subwoofer Evite colocar sistemas montados de esta forma en superfi...

Страница 29: ...sores 50 a 100 H 55 V pueden interpretarse de la siguiente manera existen dos directividades en el plano horizontal cobertura de la audiencia que var an en funci n de la distancia Normalmente a menor...

Страница 30: ...A Version 1 0 Sep14 30 Fig 6 Posici n vertical Fig 7 Posici n horizontal ATENCI N Los difusores llevan impreso el logotipo Near Field en el lado donde consideramos ngulo de cobertura horizontal m ximo...

Страница 31: ...pasadores anillas debe ser revisado regularmente y en caso de cualquier duda debe ser reemplazado por material nuevo ATENCI N NO COLGAR NUNCA LAS CAJAS POR EL ASA 3 5 1 Colgado vertical en pared medi...

Страница 32: ...1 0 Sep14 32 Fig 10 Puntos rigging JK46A JK46A Volado horizontal 2 5 o 3 6 o 9 10 o 11 12 puntos volado frontales 1 4 o 7 8 puntos traseros para angular Volado vertical 5 6 o 9 11 puntos volado front...

Страница 33: ...manual de instrucciones HR26 para m s informaci n Fig 11 Barra de volado HR26 para caja JK46A 3 6 Montaje y desmontaje de la reja frontal Para desmontar la reja frontal quite primero los tornillos de...

Страница 34: ...a pantalla principal como se muestra en la Fig 13 Fig 13 Pantalla principal A Preset actual B Niveles de entrada y salida C Nivel de volumen D Temperatura de la etapa de potencia E Caracter sticas esp...

Страница 35: ...ipal 4 4 Opciones del men Para navegar por el men pulsar primero MENU SELECT Recuerde siempre que debe desbloquear el teclado antes de entrar a seleccionar una opci n La tecla MENU muestra las diferen...

Страница 36: ...de activaci n Si se activa el modo ECO el sistema analizar continuamente la se al de entrada Si no se detecta se al despu s del n mero de minutos seleccionado 1 10 30 el sistema se pondr en modo de ba...

Страница 37: ...e Idioma Seleccionar aqu el idioma en el que se muestra la interfaz de usuario Pulsar SELECT para cambiar a la opci n resaltada MENU INFORMACI N Dentro de esta opci n se proporciona un resumen r pido...

Страница 38: ...do La iluminaci n prolongada del led Limiter indica que el limitador RMS est actuando Paralelamente el limitador de pico de ataque ultrarr pido controla los picos de din mica de la m sica y se indica...

Страница 39: ...uraci n de entrada provocando que La se al de salida se reducir en 20dB Todos los leds de limitador se encender n continuamente El led frontal parpadear Se mostrar un mensaje en el LCD Saturaci n Entr...

Страница 40: ...mpedancia 20k Red Tipo Universal switching power supply 85 265VAC 45 65Hz Heavy duty musical program 0 7A Consumo en Standby 5W Convertidores anal gicos 24 bit 48kHz Arquitectura DSP 48 bit L nea dela...

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